Research Area: Physiology

Similar geometric rules govern the distribution of veins and stomata in petals, sepals and leaves

Zhang, F. , Carins Murphy, M. R., Cardoso, A. A., Jordan, G. J. and Brodribb, T. J. (2018), Similar geometric rules govern the distribution of veins and stomata in petals, sepals and leaves. New Phytol. . doi:10.1111/nph.15210

Investment in leaf veins (supplying xylem water) is balanced by stomatal abundance, such that sufficient water transport is provided for stomata to remain open when soil water is abundant. This coordination is mediated by a common dependence of…

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Ferns are less dependent on passive dilution by cell expansion to coordinate leaf vein and stomatal spacing than angiosperms

Ferns are less dependent on passive dilution by cell expansion to coordinate leaf vein and stomatal spacing than angiosperms Carins Murphy MR, Jordan GJ, Brodribb TJ (2017) Ferns are less dependent on passive dilution by cell expansion to coordinate leaf vein and stomatal spacing than angiosperms. PLOS ONE 12(9): e0185648. https://doi.org/10.1371/journal.pone.0185648

Producing leaves with closely spaced veins is a key innovation linked to high rates of photo- synthesis in angiosperms. A close geometric link between veins and stomata in angio- sperms ensures that investment in enhanced venous water transport…